We ordered the biggest harness available, the head stall was way too big and the rest was too small. We have Fjords so it is a little hard finding the right gear but we would at least hope for a better fit from this harness. Other than not fitting correctly, its a great harness.
I have both the Miniature and the Arabian (which has been discontinued) sized harnesses for my miniature steer. Since oxen are sized oddly, I had to get the two sizes. I was afraid that the Arabian wouldn't fit and I would be unable to interchange the peices but I was wrong. I have been able to mix and match the peices until I have a perfectly fitting harness for him! :) I have had the Miniature for almost 2 years and I aquired the Arabian last summer. I haven't had any problems with straps breaking, fraying or getting rough edges. I would recomend this to anyone who asked. It's also the cheapest price around!